MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by multiple heuristics and an ML classifier, with ClamAV detecting it as Pdf.Phishing.Trojan. The PDF contains numerous links pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farms on disposable hosting further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://queure.ru/uplcv?utm_term=is+code+of+concrete
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c518242f625---logivevawebaja.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec0e290a64---zoxerufa.pdf
- https://ksboutlet.com/file/files/nazujegajalalafibiza.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092622957c10---naxawupalekatevama.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/614bd69ede9f588649410e4e30d89cdf/jugazupegadoviwinepe.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bd554d9ff1a---60186566101.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607616c606ac3---bodavow.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082369450897---99634523386.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d8abcb974---62648923442.pdf
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/8660cef942c49612c63b5b38d93ba38b/goxumupudogusifek.pdf
- https://matrainagycsalados.hu/userfiles/file/20663735455.pdf
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/949e2ada3cc5622064f42dcbf1741736/kukageke.pdf
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/fccd1f9585318c02abb9da973e88e8fe/nupikofinexa.pdf
- https://planet-for-events.de/userfiles/file/ditatiwunafewatelofomow.pdf
- https://citronixdeflection.com/nbloom/fckuploads/file/21386714402.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2d9dbfb59---41187501498.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609bdf1032b00---24617035083.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f459.bin10fec1ebf53c26ed77a05e204f8026f94fbe0a0bd4cda987c4b10e383da37a9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF459 | 18008 bytes |
font_01_sfnt_off000122fc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FC | 16792 bytes |
font_02_sfnt_off00013b13.bin61d4e1af2575f02406a139597ec030cdff9ec6ee37fb04c284cd6a3ef4cc23ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B13 | 10120 bytes |
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